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REFERENCE IMAGE
EMANON PART NO.
MS51971-7
MS51971-7 is a nut in steel comp 303 or steel comp 304 or steel comp 305, passivate finish and 0.625 INCHES diameter.
Nut
REFERENCE IMAGEReference image — representative of the type, not the exact part; verify dimensions per specification.
SPECIFICATIONS
KEY DIMENSIONS
DIAMETER0.625 in
WIDTH ACROSS FLATS0.9220–0.9375 in
THREAD
THREAD0.625 inches
MATERIAL & FINISH
MATERIALSteel 303/304/305
MATERIAL SPECFED 66 FED STD
FINISHPassivate
FINISH SPECQQ-P-35
MECHANICAL
HARDNESSNot rated
STANDARDS & TRACEABILITY
NSN5310-00-764-6609
GOVERNING STANDARDMS51971-7
FLIS · NSN 5310-00-764-6609 · retrieved 2026-08-08
DOCUMENTS
✓Certificate of Conformance — included with every order
No drawing on file — request it
thread: 5/8-11, Height: 1/2", Head Width: 7/8, MS51971 series nut
Emanon is a stocking distributor — quality-system certifications are held by the certified manufacturers we source from, not by Emanon. Every shipment carries manufacturer certifications and full lot traceability.